View Code of Problem 7

    #include <stdio.h>
    int main()
    {
    	int i,b,c,d[1000],a[100000],m,n,t;
    	scanf("%d",&t);
    	while(t--)
    	{
    		for(i=0;i<100000;i++)
    		{
    			a[i]=-1;
    		}
    		scanf("%d",&n);
    		for(i=0;i<n;i++)
    		{
    			scanf("%d=%d",&b,&c);
    			a[b]=c;
    			a[c]=b;
    		}
    		scanf("%d",&m);
    		for(i=0;i<m;i++)
    		{
    			scanf("%d",&b);
    			d[i]=a[b];
    		}
    		for(i=0;i<m;i++)
    		{
    			if(d[i]!=-1)
    				printf("%d\n",d[i]);
    			else
    				printf("UNKNOW\n");
    		}
    		printf("\n");
    	}
    	return 0;
    }

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